Antifriction-eccentric.



E5153? AVAILABLE COPY J2 E. VILKIE.

ANTIFEICTION BGGENTRIG. 1 APPLIGATION FILED SEPT. 26, 1910. '51,018,142. Pa ented Feb. 20, 1912.

WITNESSES JOSEPH EUGENE VILKIE, 0F TI TUSVILLE, PENNSYLVANIA.

ANTIFRIC'IIOI -ECGENTRIC.

Specification of Letters Hitsnt.

' Patented Feb. 2%, 1912.

application filed September 28, 1916'. Serial No. 533,851.

' well-pumping power-machine or other device used in the transmission ofpower, wherein a reciprocating motion is required to be distributed toseveral distant points located in" dillerent directions, by means ofrods, wires, or cables leading from the power-house, where theoilwell-pumping power-machine or similar device is stationed andconnected to the pumping apparatus at the several wells, of which thefollowing a specification. My invention relates to that class ofccntrics, which are used in connection with the Oll well minnno )owermachines, so

called, now used so extei'isively on oil prop erties: where it isdesirable to pump a number of oil wells from the power generated by oneengine; and the same is applica lc to similar machinos or devices, usedin the transmission of power, where a reciprocating motion required tobe distributed as set forth above.

The object of my invention is to overcome and minimize the loss of powerthrough the excess of friction due to the attrition of parts; togetherwith the unnecessary strain upon the pumping power machine, or otherdevice, caused by the jerking motion of the connecting rods, where theold style eccentric wheel and ringare in use. I refer to that type ofeccentric wheel having an extension in the outer rim near the bottom,extending outward from the face, which serves as a support, on which thering rests, the inner face of said ring being fittcd to the outer faceof the eccentric wheel above said support.

In my in'iaroved eccentric, I accomplish the objects set forth, by usingin comb nation: an eccentric wheel having a groove in the outer face ofthe rim, so shaped, that it conforms to the contour of adjustable wheelbearings, for which the said groove serves as a runway and support; sothat an odd number of the wheel liicarings, three or more, I preferfive, being placed in position, properly assembled and adjusted inconjunction with the outer ring, and balanced by the proper arrangementof swivels or other device, used in connecting the rods, wires orcables, leading tothe several Wells; the revolving of the eccentricwheel keyed to the vertical shaft of the pumping power machine, workingin conjunction with the wheel bearings and the outer ring, causes asteady reciprocating motion, on each con necting rod in turn, ofsufficient forward, baclm'ard. and lateral swing, to insure" the properstroke required to pump each Well, or

other device connected thereto.

In the drawings hereto attached and made part hereof: Figure l, is a topsection view showing the general appearance of my in1- provedoccentricwith the several parts assembled in position. 2, is a crosssectionview on the line 1, 2, in Fig. 1, showing the methodof'assembling the several parts of each adjustable bearing in theelliptical shaped supports of the outer ring, the groove in which thewheel bearings rotate, the arrangement of a suitable oiling device, andthe relative position of the vertical shaft of the power machine. thecomponent parts of each of the adjust.- able wheel bearings. Fig.ehshows theshapc of the adjusting slots in the top and bottom portionsof the outer ring, which serve as elliptical pimped SUPPUItS for each ofthe adjustable bkzlill'lg'S. Fig. a sectional view ofthe outer face ofmy ii'u n-oved eccentric, showing-the grooved runway in the face ofeccentric wheel; togc her with a por-' tion of the outer ring whichshows one menu her of the wheel bearings assembled in position.

Similar letters refer to similar parts throughout the several views.

The eccentric wheel A, having hole B, and key seat in the hub fitted toreceive the large shaft of the pumping power machine see Fig. l, andFig. 9, and having a groove in the outer face C; so shaped, that itconforms to the contour of, and serves as a run way for the wheelbearings S, which revolve around the small shafts I, having a shoulderL, neaithe bottom, which rests upon the inner face of the bottomportions of the elliptical shaped supports F, (see Fig. 3, and Fig. inthe outer ring D, and a rectangular extension M, through which the hole0, (see Fig. 2,) is drilled near the end, to receive a cotter pin P,designed to hold the Fig. shows

